1S4 



NATURAL HISTORY OF PLANTS. 



Anastaiica 

 hierochuntina 



{Rose of Jericho), 



Loxostemon, Mbrettia, Notoceras (fig. 206,) Andrzejowskia, Paro- 

 linia (figs. 207, 208), Parri/a, Cithareloma, Mattkiola, Lonchophora, 

 and Anastaiica (fig. 20$), only differing in minor characters, 

 which will be given in detail later, 1 and which chiefly refer to 



the habit ; the similar or dissimilar insertion of 

 the sepals ; their form ; that of the siliqua ; the 

 presence or absence of appendicular prominences 

 (of very variable form) on its valves ; the form of 

 the stigmatiferous apex of the style, which may 

 be simply capitate, entire, and covered uniformly 

 with papilhe, or more or less deeply bilobate, with 

 the lobes erect, connate, or more or less decurrent 

 on the style. 



The flowers of Sisymbrium (figs. 214, 215) are 

 formed as in most of the preceding genera ; and so, 

 on the whole, is the siliqua. But the cotyledons 

 are incumbent ; that is to say, their radicle is folded against the 



Fig. 209. 

 Fruit (f). 



Tetrapoma karbareifolia TrRCZ. (fi>s. 210-213) 

 Tetrapoma barlareifoliir. 



Fig. 210. 



as an anomaly of Nasturtium palustre R. Br., 



not as the type of a distinct genus, for, although 

 its ovary has three or four placentas, in other 

 respects its organization is quite that of a Na- 

 sturtium (see the Genera below). The style is 

 thick, broad, subentire on top (figs. 210-212) ; four 

 h ypogynous glands are seen at the base of the 



Fig. :12. 



Fig. 213. 



Fig. 211. 



ovary; when there are tour placentas thei 

 arrangement is cruciate (figs. 211, 213). We 

 must note that in our gardens this anomaly is 

 retained more or less completely, and reproduced 

 from year to year by seed. 

 1 See the Genera below. 



